Home / 181,871,816.74-272,623,861.59-78,308,560.42

Finding the Fourth Proportional to 181,871,816.74, 272,623,861.59 and 78,308,560.42

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Solution

The fourth proportional to 181,871,816.74, 272,623,861.59 and 78,308,560.42 is: 117,383,674.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,871,816.74 : 272,623,861.59 = 78,308,560.42 : x
  2. Step 2: Convert to fraction form
    181,871,816.74/272,623,861.59 = 78,308,560.42/x
  3. Step 3: Cross multiply
    181,871,816.74x = 272,623,861.59 × 78,308,560.42
  4. Step 4: Simplify right side
    181,871,816.74x = 21,348,782,137,254,232
  5. Step 5: Solve for x
    x = 21,348,782,137,254,232/181,871,816.74
  6. Step 6: Final answer
    x = 117,383,674.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.